DiskStation DS620slim

Description

HARDWARE SPECIFICATIONS

CPU

CPU ModelIntel Celeron J3355
CPU Architecture64-bit
CPU FrequencyDual Core 2 burst up to 2.5 GHz
Hardware Encryption Engine (AES-NI) 
Hardware Transcoding EngineH.265 (HEVC), MPEG-4 Part 2, MPEG-2, VC-1; maximum resolution: 4K (3840 x 2160)); maximum frame rate per second (FPS): 30

Memory

System Memory2 GB DDR3L
Memory Module Pre-installed2 GB (2 GB x 1)
Total Memory Slots2
Memory Expandable up to6 GB (2 GB + 4 GB)
Notes
  • Synology reserves the right to replace memory modules with the same or higher frequency based on supplier’s product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
  • Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.

Storage

Drive Bays6
Compatible Drive Type* (See all supported drives)
  • 2.5″ SATA HDD
  • 2.5″ SATA SSD
Maximum Internal Raw Capacity30 TB (5 TB drive x 6) (Capacity may vary by RAID types)
Maximum Single Volume Size*108 TB
Hot Swappable Drive 
Notes
  • “Compatible drive type” indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum single volume size is not directly related to the maximum raw capacity. (Learn more)
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.

External Ports

RJ-45 1GbE LAN Port2 (with Link Aggregation / Failover support)
USB 3.0 Port2

File System

Internal Drives
  • Btrfs
  • EXT4
External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
NotesexFAT Access is purchased separately in Package Center.

Appearance

Size (Height x Width x Depth)121 mm x 151 mm x 175 mm
Weight1.4 kg

Others

System Fan80 mm x 80 mm x 1 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan 
Brightness Adjustable Front LED Indicators 
Power Recovery 
Noise Level*20.5 dB(A)
Scheduled Power On / Off 
Wake on LAN / WAN 
Power Supply Unit / Adapter65 W
AC Input Power Voltage100 V to 240 V AC
Power Frequency50/60 Hz, Single Phase
Power Consumption*34.88 W (Access)
7.59 W (HDD Hibernation)
British Thermal Unit119.1 BTU/hr (Access)
25.92 BTU/hr (HDD Hibernation)
Notes
  • Power consumption is measured when it’s fully loaded with Western Digital 1TB WD10JFCX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with WD 1TB WD10JFCX hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 17.2 dB(A); Temperature: 23.6˚C; Humidity: 58.2%.

Temperature

Operating Temperature5°C to 40°C (40°F to 104°F)
Storage Temperature-20°C to 60°C (-5°F to 140°F)
Relative Humidity5% to 95% RH

Certification

  • EAC
  • VCCI
  • RCM
  • FCC
  • CE
  • BSMI

Warranty

2 Years
NotesThe warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)

Environment

RoHS Compliant

Packaging Content

  • Main Unit X 1
  • AC Power Adapter X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1

Optional Accessories

  • D3NS1866L-4G DDR3 non-ECC SO-DIMM
  • Surveillance Device License Pack
  • VS360HD
  • VS960HD

DSM SPECIFICATIONS (SOFTWARE SPECS)

Storage Management

Maximum Internal Volume Number64
Maximum iSCSI Target Number128
Maximum iSCSI LUN256
iSCSI LUN Clone/Snapshot, Windows ODX 
SSD TRIM 
Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
Volume Expansion by Adding a HDD
  • Synology Hybrid RAID
  • JBOD
  • RAID 5
  • RAID 6
Global Hot Spare Supported RAID Type
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10

File Services

File ProtocolCIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections500
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)1,500
Windows Access Control List (ACL) Integration 
NFS Kerberos Authentication 

Account & Shared Folder

Maximum Local User Accounts2,048
Maximum Local Groups256
Maximum Shared Folder256
Maximum Shared Folder Sync Tasks8

High Availability

Synology High Availability 

Log Center

Syslog Events per Second400

Virtualization

VMware vSphere 6 with VAAI 
Windows Server 2016 
Citrix Ready 
OpenStack 

General Specifications

Networking ProtocolsSMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
Supported LanguageEnglish, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文

Add-on Packages view the complete package list

Antivirus by McAfee (Trial)

 

Central Management System

 

Synology Chat

Maximum Users1,000
Notes
  • The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.

Cloud Station Server

Recommended Number of Hosted Files500,000
Recommended Number of Concurrent Sync Clients500 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time.
  • The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Cloud Station Server service. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.

Document Viewer

 

Download Station

Maximum Concurrent Download Tasks80

exFAT Access (Optional)

 

Synology MailPlus / MailPlus Server

Free Email Accounts5 (Licenses required for additional accounts)
Maximum Number of Concurrent Users50
Notes
  • The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
  • The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
  • Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).

Media Server

DLNA Compliance 

Moments

Facial Recognition 
Subject Recognition 
Auto Color & Rotate 
Moments Select 

Snapshot Replication

Maximum Snapshots per Shared Folder1,024
Maximum of System Snapshots65,536

Surveillance Station

Maximum IP cam (Licenses required)25 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)*750 FPS @ 720p (1280×720)
600 FPS @ 1080p (1920×1080)
350 FPS @ 3M (2048×1536)
250 FPS @ 5M (2591×1944)
120 FPS @ 4K (3840×2160)
Total FPS (H.265)*750 FPS @ 720p (1280×720)
750 FPS @ 1080p (1920×1080)
450 FPS @ 3M (2048×1536)
250 FPS @ 5M (2591×1944)
200 FPS @ 4K (3840×2160)
Total FPS (MJPEG)*450 FPS @ 720p (1280×720)
250 FPS @ 1080p (1920×1080)
160 FPS @ 3M (2048×1536)
130 FPS @ 5M (2591×1944)
NotesSurveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.

Synology Drive

Recommended Number of Hosted Files500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Recommended Number of Concurrent Sync Clients450 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Exceeding the limits above may result in longer response time in file operations.
  • Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.

Synology Office

Maximum Users400
Notes
  • Multiple files were opened for testing and each file was edited by 30 users simultaneously.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM

Video Station

Video Transcoding4K Group 1 (See more)
Maximum Transcoding Channel Number2 channel, 30 FPS @ 4K (4096 x 2160), H.264 (AVC)/H.265 (HEVC) or
2 channel, 30 FPS @ 1080p (1920×1080), H.264 (AVC)/H.265 (HEVC)/MPEG-2/VC-1

Virtual Machine Manager

Recommended Virtual Machine Instances(Learn more)
Recommended Virtual DSM Number (Licenses required)2 (including 1 Free License)
Notes
  • Virtual Machine Manager is not supported on hosts running Synology High Availability.
  • The specifications vary depending on system configuration and memory size.

VPN Server

Maximum Connections30

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